Home / 38,412.15-57,618.22-12,119.55

Finding the Fourth Proportional to 38,412.15, 57,618.22 and 12,119.55

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Solution

The fourth proportional to 38,412.15, 57,618.22 and 12,119.55 is: 18,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412.15 : 57,618.22 = 12,119.55 : x
  2. Step 2: Convert to fraction form
    38,412.15/57,618.22 = 12,119.55/x
  3. Step 3: Cross multiply
    38,412.15x = 57,618.22 × 12,119.55
  4. Step 4: Simplify right side
    38,412.15x = 698,306,898.20
  5. Step 5: Solve for x
    x = 698,306,898.20/38,412.15
  6. Step 6: Final answer
    x = 18,179.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.